In a medium bowl, beat eggs, zest, juice, 2 tablespoons sugar and salt until well blended. Pour into a 13" X 9" X 2" inch baking pan and set aside.

In a small bowl combine blueberries and the remaining tablespoon of sugar. Set aside.

With the tip of a sharp knife, cut a 1 1/2" wide pocket in the side of each slice of bread. Fill pockets with reserved blueberry mixture, dividing evenly. Place filled slices in egg mixture. Let stand, turning once, until egg mixture is absorbed, about 5 minutes per side. Arrange bread on prepared baking sheet and sprinkle with almonds. Bake until golden brown, about 15 minutes, turning slices after 10 minutes. Serve with blueberry orange sauce.